embkey



2 Sheets-She'6 1.;

(No Model.) l

J. J. EMBREY.

Ore Concentrator.

Patented March 22,1881

N-PETERS, PHOTO UTNOQRAPHEE WASHINGTON D C 2 Sheets-Sheet 2.

- (No Model.)

JyJ'. EMBREYi Ore Concentrator.

N0 239,091. Patented March 22,1881

Wi'zizmses N-PEI'ERS, PNOTOLITHOGRAPHER. WASHINGTON. Dv

UNITED STATES PATENT OFFICE.

onson annennv, or FREDERIGKSBURG, VIRGINIA.

ORE-CONCENTRATOR.

SPECIFICATION forming part of Letters Patent No. 239,091, dated March 22, 1881.

Application filed July 31, 1880. (N0 model.)

To all whom it may concern:

Be it known that I, JUDSON J. EMBREY, a citizen of the United States, residing at Fredericksburg, Spottsylvania county, and State of Virginia, have invented a new and Improved Ore-Concentrator and I do hereby de-;

clarethatthe following is a,full, clear, and exact description thereof, reference beinghad to the accompanying drawings and letters of reference marked thereon, forming a part of this specification, in which drawings- Figure l is a perspective view of my im proved machine for concentrating ores. Fig.

2 isa side elevation, showing the same in reverse position,.end for end. Fig. 8 is a verti cal longitudinal central section of the machine, as shown in Fig. 2; and Fig. 4 is a detail view ofthe metal hopper or box from which the metal concentrated therein is automatically discharged during the operation of the machine.

The object of my invention is the produc charged during the operation of the machine,

As shown in the drawings, the main frame of my improved machine consists of long-itudinalfoundation-pieces a at, having foundation cross-pieces a a framed therein, thusform- .ing a firm, steady support for the superincumbent structures. Into the longitudinal foundation-pieces main upright posts, as at a, a a and a", are framed, and connected together, in a suitable manner, by longitudinal top pieces, as at a a and cross top pieces, at and a, and I also connect the two main upright posts a a by a cross-beam, as at a, in order to give additional strength and steadiness to the machine. At the head of the machine upright posts, as at e and a. are framed into the longitudinal pieces a a, and connected by a cross-beam, 0. Longitudinal top pieces or beams, a and a, connect the upright postsct and a with the main upright posts (0 and a respectively, as shown, and

thus complete the main frame of the machine. 1

Within the main frame I suspend a shaker,

screw-threaded ends the thumb-nuts f, as

shown. Thus the shaker can have an oscillation to and fro longitudinally of the machine, and byproperly turningthe thumb-nuts f a more or less rearward pitch may be given to the shaker, as desired. At a point central of the length of the cross-piece b, at the front end of the shaker, a short arm, as at g, is at tached to the cross-piece b, and to this arm 9 apivotal connection, as at g, is made with an -ordinarily-constructed cam-eccentric, G, the

shaft it of which is properly confined in boxes h upon the upright posts a a of the main frame, as indicated in the figures. The shaft It at one endis provided withabalance-wheel,

k and at its opposite end with a pulley, k

around which a power-band, h, passes to give rotation tothe pulley, and consequent action to the eccentric G, whereby a longitudinal forward-and-back movement is imparted to the shaker A. I

B is an endless bed, upon which the ore being treated is distributed from a chute, H,

located above it, as indicated in the figures.

This endless bed is made of suitable flexible textile material, and'of a width nearly equal to the length of the bed-rollers c and end rollers, '0 c In action, this bed passes over the rollers c in a direction from the rear to the front end of the machine, as indicated by the arrowsousaid bed in Fig. 1, thence onward over the front end roll, 0, of the shaker A, thence down around a drive-roll, D, whichis located partly within the metal-receivin g box F, thence up over a tightening-roll, d, thence down around a drive-roll, D, and onwardly up over the roll 0 at the rear end of the shaker.

D is the main drive-roll of the bed'B. It is located near the lowerends of the upright posts 0. a", and works in boxes properly secured to said posts just above a tailing-box, F, which receives the refuse of the stamped ore, and from which such refuse, mingled with water, flows off from the machine. It is driven by an independent power-belt, 1, upon a pulley, 'i, at one of its ends, as shown, and thereby primarily communicates movement to the bed B, as described. At its opposite end it is provided with a pulley, i, (see Fig. 1,) around which an endless band, i engages, as shown, and thence passes (see Fig. 2) on and around an opposite pulley, on one end of the driveroll D, thus communicating movement to said drive-roll, which, in turn, imparts movement to the bed B. Another pulley is provided on one end of the drive-roll D, (see Fig. 1,) as at i, and is provided with an endless band, i which engages, as indicated in Fig. 1, with a pulley, i", on the shaft k of an Archimedeau screw, S, in the bottom of the metal-receivin g box F. The screw S (seeFig. 4) at one end has its shaft bearing in the box F, as shown, while at its opposite end the screw is projected bodily a portion of its length through a delivery-tube, K, applied to the box, as indicated in the figure, so that when the pulley i is rotated in the direction of the arrow upon its band '6 the contents of the box will be forced forward and discharged out of the box F through its delivery-tube K.

H, as before stated, is a chute or distributer, which receives a stream of water in which the pulverized ore is mingled. The ore and water commingled pass overits interior surface, being distributed thereon by the usual well-known appliances, and so as to pass therefrom through an opening, 19, at its bottom onto a perforated plate, 19 beneath and so through the perfora tions in said plate, be distributed over the bed B beneath it. This chute or distributer H is supported in position, as shown in Fig. 1, upon a cross-bar, l, secured to the upright posts a a At the forward end of my machine, as clearly shown in Fig. 1, I secure a water-pipe, R, which is closed at one end, 1", and supplied through its open opposite end with water from any convenient locality. Near the closed end of this pipe B, and connecting with its interior, I apply a flexible tube, B, which, at its lower end, connects with and communicates with the interior of a water-distributer, R This water-distributer is closed at all points, except that it is provided with small jet-tubes, as at 1;, along one of its sides, as shown, and a distance along its length equal, or thereabout, to the width of the bed B beneath it. These jettubes communicate with the interior of the distributer B and thus, when the machine is in o, is distributed over the bedB above the point of discharge of the commingled water and crushed ore which flows from the chute H onto the bed B. One end of the water-distributer R is supported loosely in a bracket, t, secured to the upright posts a while its opposite end is provided with a pin, 00, as shown in Fig. 3, which loosely passes through a rocker-arm, 00, which extends from a rocker-shaft, X, which is pivotally connected to brackets, as at t t inFig. 1. On the rocker-shaft another rocker-arm, as at 00 is provided, as shown in Fig. 1, and with its outer end perforated to receive a connecting-rod, 00 one end of which hooks into the perforation in the rocker-arm .00 while its opposite end hooks into a staple, 00 driven into one of the longitudinal side pieces of the shaker A, as signified clearly in Thus, when the machine is 1n opsaid figure. eration, the shaker A is forced to and fro longitudinally by the eccentric G, and the rockershaft X made to oscillate, whereby, through the rocker-arm ac and pin a; in the under side of the water-distributor R said distributer is caused to reciprocate forward and back over and across the bed 13, and so discharge jets of water in serpentine form upon the meta-l on the bed B, which metal, by the action of the shaker, is made to travel up the bed until it reaches its front end, at which point it is discharged from the bed B, and falls into the metal-receiving box F. p

In the operation of the machine the crushed ore, mingled and carried along with a current of water, falls upon the chute H. It thence passes down to and through the perforated plate 19 and onto the bed B, and as the bed is made to incline toward the rear end of the machine, the current will flow over the bed B into the tail-box F and carry with it the finelypowdered rock, while the metal itself will settle upon the bed B, and, by the action of the shaker, be made to climb up the bed, and finally become discharged into the metal-receivin g box F. 7

It will be seen that during the passage of the metal up the bed B it receives a final washing or cleansing between the point of its discharge from the chute H and the water-distributer R by fine jets of water from the jettubes 02, thrown upon the bed B in serpentine form by reason of the travel of the distributer R across and over the bed B. These jet-tubes o may have cocks applied to them to regulate the jet-discharges.

It will also be seen that both of the driverolls D and D, which drive the bed B, are permanently secured in place to the main posts of the frame of the machine, and have no movement in any direction save simply that of rotation, and that while all that portion of the bed B which is above said drive-rolls can be made to oscillate to and fro in unison with the oscillations of the shaker A upon and over which the uppermost portion of thebed is stretched, still such oscillation will in no way affect the tautness of the bed in any portion thereof, and that thus a perfect uniformity of movement of the bed and a steadiness of action of the machine are effected, which cannot be secured in this class of machines where the drive-roll is suspended and oscillates with the bed. In other words, in machines of this any proper receptacle placed beneath the dc class where the drive-roll is suspended and oscillates with the bed, the sudden, sharp action of a cam or eccentric imparting short to-andfro movements of the shaker will more or less slacken the drive-belt of the drive-roller of the the screw S to the metal-receiving box and.

operate it as described, whereby the machine automatically delivers the washed metal into liveryend of the tube-Kof "the box.

The bed B may be tightened up, when necessary, by the roller d, whose journal-bearing is adjustable along the brace-beam T, as signified in the figures.

W llll l t/ t i, i

I claim- 1. In an ore-concentrating machine, the cornbination of a shaker, A, suspended from the main frame of the machine, means for imparting longitudinal movement to the shaker, and an endless traveling ore-bed, B, which works in contact with, and has movement on the periphery of and is driven by, a roller secured to said main frame, substantially as and for the purpose described.

-2. In an ore-concentrating machine, a waterdistributer, R and means for vibrating it independently ot' the shaker A, in combination with an ore-bed, B, whereby, when the machine is in operation, water shall be distributed crosswise of and over the bed, substantially as and for the purpose described.

J UDSON J. EMBREY.

Witnesses:

ST. GEO. R. FITZHUGH, J o. 'A. ENGLISH. 

